US4714441A - Electrical socket - Google Patents

Electrical socket Download PDF

Info

Publication number
US4714441A
US4714441A US07008679 US867987A US4714441A US 4714441 A US4714441 A US 4714441A US 07008679 US07008679 US 07008679 US 867987 A US867987 A US 867987A US 4714441 A US4714441 A US 4714441A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
means
disc
contact
electrical socket
pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07008679
Inventor
Ned E. Corman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMP Inc
Original Assignee
AMP Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00-H01R33/00
    • H01R13/02Contact members
    • H01R13/15Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00-H01R33/00
    • H01R13/02Contact members
    • H01R13/10Sockets for co-operation with pins or blades
    • H01R13/11Resilient sockets
    • H01R13/111Resilient sockets co-operating with pins having a circular transverse section

Abstract

An electrical socket having a plurality of contact elements with bowed beams on each end cooperating to form resilient passages to receive a pin. The contact elments are supported on a disc with the beams being on each side thereof. A cavity in the housing receives the disc and associated contact elements. An opening through the disc is sized so that the pin passing therethrough cannot wobble and overstress the beams.

Description

FIELD OF THE INVENTION

The present invention relates to a pin receiving, electrical socket having a plurality of independent resilient contact elements.

BACKGROUND OF THE INVENTION

Sockets having a biasing device to provide normal forces against an inserted pin are well known in the art. Such devices include longitudinally extending leaf springs disclosed in U.S. Pat. No. 3,317,887, contact arms surrounded by a cylindrical spring disclosed in U.S. Pat. No. 3,605,078 and a socket formed from a plurality of wires extending obliquely to the longitudinal axis disclosed in U.S. Pat. No. 3,470,527.

It is now proposed to provide a socket formed from a plurality of double looped contact elements positioned circumferentially to define a pin receiving opening.

SUMMARY OF THE INVENTION

According to the present invention, an electrical socket is provided having a plurality of elongated contact elements with curved or bowed beams on each end of an interconnecting strap. The contact elements are on a disc with the beams on each side thereof cooperating with adjacent beams to form two, independent acting, resilient passages which receive an elongated pin for electrical engagement therewith. The two passages permit a reduction in the force required for inserting the pin into the socket without reducing the normal force acting on the pin.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a high current socket constructed in accordance with the present invention;

FIG. 2 is a side cross-sectional view of the socket;

FIG. 3 is a perspective view of a contact element of the socket;

FIG. 4 is an end cross-sectional view of the socket;

FIG. 5 is the cross-sectional view of FIG. 2 with a pin inserted into the socket;

FIG. 6 is a side cross-sectional view of another embodiment of the socket; and

FIG. 7 is a plan view of an alternative contact element.

DESCRIPTION OF THE INVENTION

Electrical socket 10 of the present inention is shown in FIG. 1 attached to bus bar 12 for transmitting current to or from electrical wire 14 through pin 16 and terminal 18. Socket 10 may be mounted on bus bar 12 by any conventional method such as being threadly received therein as shown. Pin 16 is a conventional, complemental member to sockets such as socket 10. Pin 16 includes contact shaft 20 having a bullet shaped free end and threaded post 22 for being attached to ring tongue terminal 18 by means of nut 24. Terminal 18 is also a conventional electrical item and includes tongue 26 with an opening (not shown) for receiving post 22 or the like. Terminal 18 also includes wire barrel 28 which is crimped around a bared end (not shown) of wire 14.

As shown in FIG. 2, socket 10 includes cup-shaped housing 30 with an external, circumferential flange 32 at one end and threaded at another end. Cavity 34 of housing 30 is threaded at one end to receive cap 36. In the alternative, housing 30 and cap 36 could be made so that cap 36 would be pressed into the opening to cavity 34. Passages 38 and 40 are provided in housing 30 and cap 36 respectively to provide access to cavity 34 from both ends of socket 10. Both passages 38, 40 are tapered towards cavity 34 with the smallest diameter thereof just accommodating contact shaft 20 of pin 16. Housing 30 and cap 36 are made from brass, although other suitable conductive materials may be used.

A plurality of contact elements 42, mounted on disc 44, are positioned in cavity 34 of housing 30. As shown in both FIGS. 2 and 3, elements 42 include two curved or generally circular contact beams 46 with one being at each end of an intermediate or connecting strap 48. Beams 46 incorporate spring portions 50, contact area 52 and free end portions 54 pointing in towards strap 48. As can be seen, end portion 54 is narrower in width relative to the rest of beam 46.

Strap 48 is bent at the mid-point as indicated by reference numeral 56 to preload beams 46 towards each other. Further, strap 46 thins in width to mid-point 56 so that its resiliency is greater than beams 46.

Preferably, elements 42 are stamped and formed from a copper-iron alloy and plated with gold or silver over nickel at contact area 52.

Disc 44 is made from brass or plastic with center opening 58 therethrough having a diameter such that contact shaft 20 of ppin 16 is received therethrough with very little play. A plurality of grooves 60 are provided on both surfaces of disc 44, extending from center opening 58 out to the edge with the grooves on one surface being in line with those on the opposite surface. The thickness of disc 44 between opposing grooves 60 is slightly greater than the space between free end portions 54 on a contact element 42.

Disc 44 can incorporate outwardly projecting walls on both surfaces as shown in phantom in FIG. 2 and indicated by reference numeral 62. Walls 62 would be located between grooves 60 and would support beams 46 vertically. This embodiment would preferrably be molded from a suitable plastic material.

As shown in FIG. 2, contact elements 42 are positioned around cavity 34 with disc 44 in the space between free end portions 54 which are slidingly received in grooves 60. Contact areas 52 on beams 46 face inwardly over center opening 58 in disc 44 and define two resilient, pin-receiving passages 64 with one passage 64 being on each side of disc 44. As will be discussed below, the sets of beams 46 constituting passages 64 act independently from each other not withstanding their physcial connection. Connecting straps 48 are pressed against the walls of cavity 34 to make electrical contact with housing 30.

FIG. 4 is a view looking into cavity 34 showing the smaller size of passages 64 relative to center opening 58 of disc 44.

FIG. 5 shows contact shaft 20 of pin 16 inserted into passages 64 defined by contact elements 42 and opening 58 through disc 44. As shaft 20 enters the first passage 64 and engages beams 46 in the set defining that passage, the portion of straps 48 extending from midpoint 56 to spring portion 50 of those beams 46 are resiliently forced against the cavity wall. Thereafter, the stiffer beams 46 are resiliently compressed into a smaller diameter with the hinge point being at spring portions 50. Free end portions 54 slide outwardly in grooves 60 in disc 44 towards respective straps 48 to accommodate the resilient deformation.

Passing from the first passage 64 and through opening 58 in disc 44, shaft 20 enters the second passage 64 and engages beams 46 in the set defining that passage. A repeat of the events which occurred in the first passage 64 takes place; i.e., the portion of straps 48 associated with the second set are resiliently forced against the cavity wall and beams 46 are resiliently compressed with free end portions 54 sliding along grooves 60 in response thereto.

As is apparent from the foregoing, an advantage gained from having independently acting, dual beam sets is that the insertion force is broken into two main events of lesser magnitude without a loss in normal forces beams 46 exert against shaft 20. Further, each beam set provides a variable spring rate which subdivides each main event into two smaller events. Thus, a high normal force is obtained with insertion force peaks remaining acceptable.

As noted above, passages 38, 40 in housing 30 and cap 36 respectively, and center opening 58 in disc 44 is sized to first receive contact shaft 20. Accordingly, beams 46 cannot be overstressed by oversized pins. Further, pin 16 cannot be wobbled in socket 10 which also could cause beam overstress.

Another embodiment of the present invention is shown in FIGS. 6 and 7. Socket 66 includes housinng 68, and three sets of contact elements 70 stacked in cavity 72 with spacers 74 between each set. Further included is cap 76 having opening 78 therethrough and which is threadedly received or pressed in one end of housing 68. As with socket 10, each set of contact elements 70 are arranged around a disc 80. Further, each element 70 in a given set is interconnected by connecting links 82. Links 82 are also shown in FIG. 7, which is a view showing a strip of stamped elements 70 prior to being formed. A suitable material copper-iron alloy.

Housing 68 is provided with a threaded post 84 at one end for mounting on a bus bar (not shown) or the like.

Elements 70 are wider than elements 42 but are structurally alike, having beams 86 and connecting straps 88. Each beam 86 includes spring portion 90, contact areas 92 and free end poritions 94. Discs 80 are thinner than counterpart disc 40. Both discs 80 and spacers 74 include openings 96, 98 respectively and are preferably made from brass.

As with socket 10, beams 86 of elements 70 define passages 100 which resiliently receive shaft 20 of pin 16.

A further embodiment of contact elements 70 is indicated in phantom in FIG. 7. Lances 102 may be struck in connecting straps 88 so that upon positioning elements 70 in housing cavity 72, the walls thereof would be scrapped by lances 102 to enhance electrical contact.

As can be discerned, an electrical socket for receiving electrical pins has been disclosed. The socket includes a housing in which a plurality of contact elements are positioned. Curved beams at each end of the elements cooperate to form resilient passages into which the shaft is inserted for electrical contact therewith. A disc on which the contact elements are mounted in an annular fashion includes an opening through which the shaft passes with very little play to prevent overstressing the beams.

Claims (10)

I claim:
1. An electrical socket for receiving a pin, comprising
housing means defining cavity means, first disc means
disposed in said cavity means and having an opening therethrough; and
a plurality of contact means, each having a resilient, curved beam means on each end of a connecting strap means, said contact means positioned on and around said first disc means with said beam means on each contact means being on each side thereof, said beam means cooperating with adjacent beam means to define passages on each side of said disc means to resiliently receive the pin for electrical engagement therewith.
2. The electrical socket of claim 1 further including cap means for closing said cavity means in said housing means, said cap means having an opening through which the pin may pass.
3. The electrical socket of claim 1 wherein said contact means are connected to each other by connecting link means.
4. The electrical socket of claim 1 wherein the opening in said disc has a diameter just sufficient to admit the pin therethrough.
5. The electrical socket of claim 1 wherein said beam means on one side of said first disc means act independently relative to said beam means on another side of said first disc means during insertion of the pin.
6. The electrical socket of claim 1 wherein said two beam means on said contact means are formed around with free ends thereon projecting back in towards said strap means, said free ends being generally parallel with and spaced from each other.
7. The electrical socket of claim 6 wherein said free ends slidingly engage said first disc means on which said contact means are positioned.
8. The electrical socket of claim 7 wherein said strap means on said contact means is bent so that said beam means on each end thereof are displaced towards each other.
9. The electrical socket of claim 1 further including a second disc means with a plurality of contact means positioned thereon, said second disc means and associated contact means being positioned in said cavity means in tandem with said first disc means and said contact means associated therewith.
10. The electrical socket of claim 9 further including spacer means between contact means positioned on respective first and second disc means.
US07008679 1987-01-29 1987-01-29 Electrical socket Expired - Fee Related US4714441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07008679 US4714441A (en) 1987-01-29 1987-01-29 Electrical socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07008679 US4714441A (en) 1987-01-29 1987-01-29 Electrical socket

Publications (1)

Publication Number Publication Date
US4714441A true US4714441A (en) 1987-12-22

Family

ID=21733051

Family Applications (1)

Application Number Title Priority Date Filing Date
US07008679 Expired - Fee Related US4714441A (en) 1987-01-29 1987-01-29 Electrical socket

Country Status (1)

Country Link
US (1) US4714441A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401640A1 (en) * 1989-06-09 1990-12-12 Otto Dunkel Gmbh Fabrik Für Elektrotechnische Geräte Water-cooled high-tension electrical connector
US5228560A (en) * 1989-06-27 1993-07-20 Naeslund Leif Electrical contact unit, particularly an electrical switch
US5588852A (en) * 1995-03-21 1996-12-31 The Whitaker Corporation Electrical connector having socket contacts with safety shields
US6079990A (en) * 1999-02-02 2000-06-27 Molex Incorporated Terminal-receiving socket for mounting on a circuit board
WO2010105998A1 (en) * 2009-03-16 2010-09-23 Tyco Electronics Amp Gmbh Contact element with an electrically conductive spring element, plug connector and spring element
FR2952760A1 (en) * 2009-11-17 2011-05-20 Decelect Network work plug for automatically testing connection to ensure connection of e.g. data-processing apparatus to telephony network, has case with contacts for assuring connection of pins with network cable connected to male connector
DE102011009350A1 (en) * 2011-01-25 2012-07-26 Amphenol-Tuchel Electronics Gmbh Receptacle for electrical plug connector used in motor vehicle, has spring element with guide portion that is provided to guide pin contact along plug direction for insertion into receiving space
US20120282797A1 (en) * 2011-05-05 2012-11-08 Lear Corporation Electrically conducting terminal
US8414339B1 (en) 2011-10-31 2013-04-09 Lear Corporation Electrical terminal and receptacle assembly
US8430698B2 (en) 2010-07-02 2013-04-30 Lear Corporation Electrical terminal with coil spring
US20130337702A1 (en) * 2012-06-19 2013-12-19 Lear Corporation Electrical receptacle assembly
US8678867B2 (en) 2011-10-31 2014-03-25 Lear Corporation Electrical terminal and receptacle assembly
US20140094070A1 (en) * 2012-03-23 2014-04-03 Winchester Electronics Corporation Electrical socket assembly and method of manufacturing same
US8808039B2 (en) 2011-08-22 2014-08-19 Lear Corporation Connector assembly and terminal retainer
JP2014170750A (en) * 2013-03-01 2014-09-18 Robert Bosch Gmbh Bush or plug for high current plug-in connector with contact plate ring including contact plate having 8-shaped cross section
US8876562B2 (en) 2011-05-05 2014-11-04 Lear Corporation Female type contact for an electrical connector
US20160111812A1 (en) * 2014-10-16 2016-04-21 Wolf Neumann-Henneberg Electrical plug connector
US9325095B2 (en) 2011-05-05 2016-04-26 Lear Corporation Female type contact for an electrical connector
US20170352984A1 (en) * 2016-06-02 2017-12-07 Bal Seal Engineering, Inc. Electrical connectors with linear springs and related methods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317887A (en) * 1964-12-16 1967-05-02 Amp Inc Contact socket
US3470527A (en) * 1965-06-23 1969-09-30 Connectronics Corp Electrical connector socket
US3605078A (en) * 1969-02-24 1971-09-14 Amp Inc Contact sockets and manufacturing method
US3614717A (en) * 1969-08-22 1971-10-19 Coq Utrecht Nv Electric contact devices
US4550972A (en) * 1984-04-09 1985-11-05 Amp Incorporated Cylindrical socket contact

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317887A (en) * 1964-12-16 1967-05-02 Amp Inc Contact socket
US3470527A (en) * 1965-06-23 1969-09-30 Connectronics Corp Electrical connector socket
US3605078A (en) * 1969-02-24 1971-09-14 Amp Inc Contact sockets and manufacturing method
US3614717A (en) * 1969-08-22 1971-10-19 Coq Utrecht Nv Electric contact devices
US4550972A (en) * 1984-04-09 1985-11-05 Amp Incorporated Cylindrical socket contact

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080593A (en) * 1989-06-06 1992-01-14 Otto Dunkel, Gmbh Fabrik Fur Elektrotechnische Gerate Water-cooled high-current docking plug
EP0401640A1 (en) * 1989-06-09 1990-12-12 Otto Dunkel Gmbh Fabrik Für Elektrotechnische Geräte Water-cooled high-tension electrical connector
US5228560A (en) * 1989-06-27 1993-07-20 Naeslund Leif Electrical contact unit, particularly an electrical switch
US5588852A (en) * 1995-03-21 1996-12-31 The Whitaker Corporation Electrical connector having socket contacts with safety shields
US6079990A (en) * 1999-02-02 2000-06-27 Molex Incorporated Terminal-receiving socket for mounting on a circuit board
WO2010105998A1 (en) * 2009-03-16 2010-09-23 Tyco Electronics Amp Gmbh Contact element with an electrically conductive spring element, plug connector and spring element
US8579666B2 (en) 2009-03-16 2013-11-12 Tyco Electronics Amp Gmbh Contact element with an electronically conductive spring element, plug connector and spring element
FR2952760A1 (en) * 2009-11-17 2011-05-20 Decelect Network work plug for automatically testing connection to ensure connection of e.g. data-processing apparatus to telephony network, has case with contacts for assuring connection of pins with network cable connected to male connector
US8430698B2 (en) 2010-07-02 2013-04-30 Lear Corporation Electrical terminal with coil spring
DE102011009350A1 (en) * 2011-01-25 2012-07-26 Amphenol-Tuchel Electronics Gmbh Receptacle for electrical plug connector used in motor vehicle, has spring element with guide portion that is provided to guide pin contact along plug direction for insertion into receiving space
US8840436B2 (en) * 2011-05-05 2014-09-23 Lear Corporation Electrically conducting terminal
US9356377B2 (en) * 2011-05-05 2016-05-31 Lear Corporation Electrically conducting terminal
WO2012151504A2 (en) * 2011-05-05 2012-11-08 Lear Corporation Electrically conducting terminal
US9325095B2 (en) 2011-05-05 2016-04-26 Lear Corporation Female type contact for an electrical connector
CN105375151A (en) * 2011-05-05 2016-03-02 李尔公司 Electrically conducting terminal
CN103907243B (en) * 2011-05-05 2015-12-02 李尔公司 Contacts
US20120282797A1 (en) * 2011-05-05 2012-11-08 Lear Corporation Electrically conducting terminal
CN103907243A (en) * 2011-05-05 2014-07-02 李尔公司 Electrically conducting terminal
US20140206243A1 (en) * 2011-05-05 2014-07-24 Lear Corporation Electrically conducting terminal
US8876562B2 (en) 2011-05-05 2014-11-04 Lear Corporation Female type contact for an electrical connector
WO2012151504A3 (en) * 2011-05-05 2014-05-08 Lear Corporation Electrically conducting terminal
CN105375151B (en) * 2011-05-05 2018-04-06 李尔公司 Contacts
US9352708B2 (en) 2011-08-22 2016-05-31 Lear Corporation Connector assembly and terminal retainer
US8808039B2 (en) 2011-08-22 2014-08-19 Lear Corporation Connector assembly and terminal retainer
US9761983B2 (en) 2011-08-22 2017-09-12 Lear Corporation Connector assembly and terminal retainer
US8414339B1 (en) 2011-10-31 2013-04-09 Lear Corporation Electrical terminal and receptacle assembly
US8678867B2 (en) 2011-10-31 2014-03-25 Lear Corporation Electrical terminal and receptacle assembly
US20140094070A1 (en) * 2012-03-23 2014-04-03 Winchester Electronics Corporation Electrical socket assembly and method of manufacturing same
US20130337702A1 (en) * 2012-06-19 2013-12-19 Lear Corporation Electrical receptacle assembly
JP2014170750A (en) * 2013-03-01 2014-09-18 Robert Bosch Gmbh Bush or plug for high current plug-in connector with contact plate ring including contact plate having 8-shaped cross section
US20160111812A1 (en) * 2014-10-16 2016-04-21 Wolf Neumann-Henneberg Electrical plug connector
US9490572B2 (en) * 2014-10-16 2016-11-08 Wolf Neumann-Henneberg Electrical plug connector
US20170352984A1 (en) * 2016-06-02 2017-12-07 Bal Seal Engineering, Inc. Electrical connectors with linear springs and related methods

Similar Documents

Publication Publication Date Title
US3281760A (en) Electrical connection elements and connectors
US3324447A (en) Electrical connector
US3172718A (en) Multiple contact receptacle for printed circuit boards and the like
US4020430A (en) Filtered connector assembly with composite ground plane
US4077694A (en) Circuit board connector
US4274700A (en) Low cost electrical connector
US3864000A (en) Mating contact connector housing assembly
US4084876A (en) Electrical connector
US5374204A (en) Electrical terminal with compliant pin section
US5667410A (en) One-piece compliant probe
US4591230A (en) Electrical connector receptacle
US4778404A (en) Spring terminal
US4547034A (en) Device for connecting insulated wires to twin-terminal contact elements
US4964812A (en) Wire termination block
DE10001667C1 (en) Multi-pole overvoltage diverter for LV current supply system has U-shaped base part fitted with interchangable pre-configured terminals cooperating with removable fuse elements
US4996766A (en) Bi-level card edge connector and method of making the same
US6676455B2 (en) Connector terminal with resilient contacts
US4236778A (en) Terminal block
US4416504A (en) Contact with dual cantilevered arms with narrowed, complimentary tip portions
US3058091A (en) Sheet metal pin socket
US4820207A (en) Electrical contact
US6471555B2 (en) Female electrical connector element
US5154634A (en) Connector holding device
US5928003A (en) Electrical connector for printed circuit boards
US4349804A (en) Fuse assembly for a miniature plug-in fuse

Legal Events

Date Code Title Description
AS Assignment

Owner name: AMP INCORPORATED, P.O. BOX 3608, HARRISBURG, PA 1

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CORMAN, NED E.;REEL/FRAME:004668/0253

Effective date: 19870122

Owner name: AMP INCORPORATED,PENNSYLVANIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CORMAN, NED E.;REEL/FRAME:004668/0253

Effective date: 19870122

FPAY Fee payment

Year of fee payment: 4

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Expired due to failure to pay maintenance fee

Effective date: 19951227